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fritzing
DC power plug has smaller PCB VCC hole than normal
The Power Plug (DC jack) part has three holes, two GND and one VCC. All three are approximately 2.6mm diameter in PCB view. However, the "standard" DC jack's spades are 2.5mm for the GNDs and 3.0mm for VCC. See http://www.cui.com/product/resource/pj-002a.pdf for an example, but I haven't been able to find a jack supplier with 2.5mm for all three. The SVG's filename (connector_power_pj202ah.svg) indicates it was based on the PJ-202AH (http://www.cui.com/product/resource/pj-202ah.pdf), but even that has a VCC spade of 3.0mm. The VCC hole should probably be 3.1mm.
Indeed it looks like it is 1x3 and 1x3.5 , according to the datasheet of the pj-002a and many similar power jacks.
As a workaround, it might be possible to use the sparkfun power jack (also included in Fritzing), which has 3mm drill holes. Or, of course, manually set the drill holes
I think the "standard" plug used in Fritzing matches this component:
https://asset.conrad.com/media10/add/160267/c1/-/en/001898861DS01/datenblatt-1898861-wuerth-elektronik-niedervolt-steckverbinder-buchse-einbau-horizontal-550-mm-205-mm-1-st.pdf
The connectors have 2.4 mm latches. The recommended size is 3mm x 0.8mm . So, 2.6mm holes might be a good compromise to use instead of 3x0.8 slots (which are more difficult to drill)